*Vertices 7
1 "石油实验地质" 0.0 0.0 0.0 x_fact 3.194410 y_fact 11.429998
2 "中国石油大学学报" 0.0 0.0 0.0 x_fact 2.046419 y_fact 4.367357
3 "石油与天然气地质" 0.0 0.0 0.0 x_fact 6.463689 y_fact 17.768904
4 "新疆石油地质" 0.0 0.0 0.0 x_fact 4.991265 y_fact 9.333666
5 "石油学报" 0.0 0.0 0.0 x_fact 4.392313 y_fact 12.553032
6 "天然气工业" 0.0 0.0 0.0 x_fact 5.415523 y_fact 18.866983
7 "石油勘探与开发" 0.0 0.0 0.0 x_fact 4.691789 y_fact 25.680060
*Matrix 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.256618 0.456071 0.000000 0.311920 
0.000000 0.000000 0.000000 0.343045 0.222122 0.000000 0.220526 
0.000000 0.256618 0.343045 0.000000 0.359109 0.239594 0.413705 
0.000000 0.456071 0.222122 0.359109 0.000000 0.215904 0.250062 
0.000000 0.000000 0.000000 0.239594 0.215904 0.000000 0.000000 
0.000000 0.311920 0.220526 0.413705 0.250062 0.000000 0.000000